High frequency cooking device with turntable and weight sensor

Abstract

A high frequency heating device designed to swiftly and accurately detect a to-be-cooked food placed on a turn table within a cooking chamber to thereby set up a cooking time or a driving time of a magnetron in accordance with a weight of the food, so that an appropriate cooking can be performed. A weight sensor on a lower bottom surface of the cooking chamber in order to detect the weight of the to-be-cooked food located on a turntable during a rotation of the turntable.

What is claimed is: 
     
       1. A high frequency cooking device comprising: a housing forming a cooking chamber for cooking food, said chamber including a floor;   a food-supporting turntable mounted in said chamber for rotation about a vertical axis, said turntable including a plurality of downwardly depending first lugs disposed on an underside thereof and arranged in an annular pattern about said vertical axis;   driving means for rotating said turntable about said vertical axis;   means for supplying a high frequency waves to said chamber for cooking food supported on said turntable;   support rollers mounted on a topside of said floor and disposed in fixed locations in said chamber beneath said turntable, each of said support rollers being freely rotatable about a horizontal axis within a respective bracket affixed to said floor;   one of said support rollers being mounted for vertical movement within its bracket and biased upwardly, said one support roller being spaced radially from said vertical axis and positioned to be contacted sequentially by said first lugs as said turntable rotates; and   a weight sensor device affixed to an underside of said floor and including a second lug projecting upwardly into said chamber through a hole in said floor, and engaging said one support roller so that said one support roller bears downwardly against said second lug while supporting said turntable to enable said weight sensor to weigh food disposed on said turntable.   
     
     
       2. The high frequency cooking device according to claim 1, wherein said one roller is mounted on an axle, opposite ends of said axle being mounted in respective vertical slots formed in said bracket to which said one roller is mounted, said axle being vertically movable in said slots. 
     
     
       3. The high frequency cooking device according to claim 1 further including at least one spring biasing said one support roller upwardly. 
     
     
       4. The high frequency cooking device according to claim 1, wherein said driving means comprises a motor affixed to said underside of said floor, and a vertical drive shaft projecting through said floor and operable connected to said motor and turntable for transmitting rotation from said motor to said drive shaft, said drive shaft defining said vertical axis.